FR2458939B1 - - Google Patents
Info
- Publication number
- FR2458939B1 FR2458939B1 FR7914821A FR7914821A FR2458939B1 FR 2458939 B1 FR2458939 B1 FR 2458939B1 FR 7914821 A FR7914821 A FR 7914821A FR 7914821 A FR7914821 A FR 7914821A FR 2458939 B1 FR2458939 B1 FR 2458939B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
- G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
- H02P8/14—Arrangements for controlling speed or speed and torque
- H02P8/16—Reducing energy dissipated or supplied
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Stepping Motors (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7914821A FR2458939A1 (fr) | 1979-06-11 | 1979-06-11 | Montre electronique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7914821A FR2458939A1 (fr) | 1979-06-11 | 1979-06-11 | Montre electronique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2458939A1 FR2458939A1 (fr) | 1981-01-02 |
| FR2458939B1 true FR2458939B1 (cg-RX-API-DMAC10.html) | 1983-04-22 |
Family
ID=9226408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7914821A Granted FR2458939A1 (fr) | 1979-06-11 | 1979-06-11 | Montre electronique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2458939A1 (cg-RX-API-DMAC10.html) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH646575GA3 (cg-RX-API-DMAC10.html) * | 1981-10-02 | 1984-12-14 | ||
| CH646576GA3 (cg-RX-API-DMAC10.html) * | 1981-10-02 | 1984-12-14 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5477169A (en) * | 1977-12-02 | 1979-06-20 | Seiko Instr & Electronics Ltd | Electronic watch |
-
1979
- 1979-06-11 FR FR7914821A patent/FR2458939A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2458939A1 (fr) | 1981-01-02 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| D6 | Patent endorsed licences of rights |